398216025004

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1579}}^1\times {\mathrm{70921}}^1$

素因数の和:72638

約数の個数: 48

約数和(自身を含む): 803222855680

約数和(自身を除く): 405006830676

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1579, 1778, 3158, 3556, 6316, 11053, 22106, 44212, 70921, 141842, 200533, 283684, 401066, 496447, 802132, 992894, 1403731, 1985788, 2807462, 5614924, 9006967, 18013934, 36027868, 63048769, 111984259, 126097538, 223968518, 252195076, 447937036, 783889813, 1567779626, 3135559252, 14222000893, 28444001786, 56888003572, 99554006251, 199108012502, 398216025004]

約数ペア:

[(1, 398216025004), (2, 199108012502), (4, 99554006251), (7, 56888003572), (14, 28444001786), (28, 14222000893), (127, 3135559252), (254, 1567779626), (508, 783889813), (889, 447937036), (1579, 252195076), (1778, 223968518), (3158, 126097538), (3556, 111984259), (6316, 63048769), (11053, 36027868), (22106, 18013934), (44212, 9006967), (70921, 5614924), (141842, 2807462), (200533, 1985788), (283684, 1403731), (401066, 992894), (496447, 802132)]